Fix wording in changelog

CHANGELOG.rst

@@ -42,11 +42,11 @@ Fixed
 * Phone numbers couldn't be in regional format.
 * System status view wasn't accessible through new frontend if a check failed.
 * Progress page didn't show error message on failure.
-* Dynamic routes were not removed/hid when the respective object registering it was deleted.
+* Dynamic routes were not removed/hidden when the respective object registering it was deleted.
 * Django messages were not displayed in Vue frontend.
 * Links to data check objects did not work properly.
 * Backend cleanup task for Celery wasn't working.
-* Urls in invitation email were broken.
+* URLs in invitation email were broken.
 * Invitation view didn't work.
 * Invitation emails were using wrong styling. 
 * GraphQL queries and mutations did not log exceptions.